Edgar jo h n a m



@einen tate geteilt @ffice Letters Patent No. 81,970, dated September 8, 1868. I

COMBINED SCREW-DRIVER AND WRENCH.

@its Schwule referente in there trtter ntent mit mating nu nf tte sume.

TO ALL WIIOM IT'MAY CONCERN:

Bo it known that I, EDGAR JOHN AMOR, of the city, county, and State of New York, have invented a new and useful Combined Screw-Driver and Wrench, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification, and in which- Figure 1 represents a longitudinal and side view of a combined screw-driver and wrench, and

Figure 2 a longitudinal section of the same at right angles to tig. 1.

Similar letters of reference indicate corresponding parts.

My invention consists in constructing the blade of a screw-driver with any desired number of angularl shaped apertures through it in proximity to` the handle, andwhercby the instrument may either be used as a screw-driver proper, or as a wrench to the hea-ds of taps, reamers, orother nut-like formations, with, if desired, by the comparatively central arrangement of said apertures relatively to the whole instrument, a lever-hold or purchase from both ends of the latter.

Also, the invention includes provision of the blade, near its forward end, with an oblong aperture through it, in combination with a fork, or other special screw-driver of a removable or detachable character, arranged to projectl at right angles, or thereabouts, to'thc main blade.

Referring to the accompanying drawing, A represents the handle, and B- the blade, of a screw-driver, formed with any suitable number of diiIerently-sized square or singularly-shaped openings, a, in it, adjacent to the handle, and so as to give theml a comparatively central position, relatively to the whole instrument, whereby the instrument may not only be used as escrow-driver proper, but also as a wrench to the heads of taps, reamers, or other nut-like formations, with a rm and quick action or effect, by reason of the arrangement of the openings a near the handle, and with facility, if desired, for using both ends of the vinstrument and application of both hands thereto, to turn the tap, p'in, rearner, or nut fitting within either hole a of the instrument.

This will be found of great service in many kinds of work requiring the repeated use of a screw-driver and wrench, the one instrument here performing the functions of both of these devices.

To `make'such an instrument yetAmore complete, I form in the forward portion of the blade B an oblong `slot, b, preferably made of a eilig'htly-taperingV character, for insertion and retention, with, however, facility for detachment and removal, of a fork or otherscrew-driver or hit, C, of any suitable form and size, and of which there may be any desired number of diffrent sizes, to suit work of'a special character to which the blade B is not adapted, the samestandng at rig-ht angles to the latter, and so that a long leverage is obtained by applying power to the handle A, to turn the bit, in rotating, as it were, the handle aroundY the pin or object toA which the bit is applied. This will be found of great service also in starting a screw, to be afterwards worked.

by the point of the blade B; also in giving afina] action or finishing turn to the screw after it Ahas vbeen entered or worked by said blade. I

What is here claimed, and desired to be secured by Letters Patent, is- The blade B, provided with a series of angular-shaped openings, a; near its handle-end, with an oblong slot, b, in combination with a removable or detachable fork-screw, driving-blade, or other bit, arranged to stand at right angles to the blade B, near its forward end, for operation essentially as described.

EDGAR JOHN AMOR.

Witnesses:

A. LE CLERC, A. KINSIER. 

